Larry A Vyvial

Title: Larry A Vyvial: Innovator in Valve Technology

Introduction

Larry A Vyvial is a notable inventor based in Rosenberg, TX (US). He holds a total of 4 patents that showcase his contributions to valve technology. His innovative designs have significantly impacted the industry, particularly in the areas of sealing mechanisms and wellhead assemblies.

Latest Patents

One of his latest patents is the "Backseat assembly for an expanding gate valve." This invention includes a sealing member that is slidingly disposed about the stem and a biasing member that biases the sealing member away from the gate. When the gate and segment travel to the open position of the valve, the segment engages the valve housing, stopping further movement. The sealing member engages an annular seat on the housing, ensuring a secure seal. The design incorporates an annular resilient sealing member that initially engages the annular seat, with a biasing member providing a preload for effective sealing. The fluid pressures within the valve chamber further enhance the sealing force.

Another significant patent is the "Lockdown ring assembly for wellhead seal." This invention features a segmented loading ring mechanism for a dual crossover seal in a pressurized wellhead. The assembly consists of a plurality of arcuate segments arranged in a circular fashion within the wellhead annulus. Each segment is actuated by holddown screws, which drive the ring segments radially inward to engage cooperative camming surfaces of the energizer rings. This mechanism applies balanced axially compressive forces to the dual sealing devices, ensuring effective sealing of the wellhead annulus.

Career Highlights

Throughout his career, Larry A Vyvial has worked with prominent companies such as Cooper Industries, Inc. and ACF Industries, Incorporated. His experience in these organizations has contributed to his expertise in valve technology and innovation.

Collaborations

Larry has collaborated with notable professionals in the field, including his coworker Paul R Orum. Their combined efforts have led to advancements in valve design and functionality.

Conclusion

Larry A Vyvial's contributions to valve technology through his patents and career experiences highlight his role as an innovator in the industry. His work continues to influence the development of effective sealing mechanisms and wellhead assemblies.